Submerged water heater



Jan. 1, 1929.

1,697,018 0. PEARSON SUBMERGED WATER HEATER File y 27, '1927 8 swam 0oz I V I Patented Jan. 1, 1929.

' STATES OLOF PEARSON, WAHOO, NEBRASKA.

SUBMERGED WATER HEATER.

Application filed May 27,

This invention has reference to water heaters, and more particularly to water heaters especially designed to be submerged in water tanks, troughs or the like to prevent freezing of the water during freezing weather.

An important object of the invention is to provide a device of this character which may be removed and replaced at the will of the user, and one which when positioned in the tank or trough will submerge under its own weight.

Another object of the invention is to provide a device of this character wherein the smoke and products of combustion will be utilized in heating the water in the tank.

1th the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawing:

Figure 1 is a plan view of a portable heating device constructed in accordance with the invention.

Figure 2 is a sectional view through the device.

Figure 3 is a sectional View 33 of Figure 2.

Figure 4 is a sectional view taken on line 44 of Figure 2.

Referring to the drawing in detail, the device embodies a firebox 5 which is supplied with a grate 6 to support the firebed.

Communicating with the firebox and disposed upwardly at an oblique angle, is a passageway 7, through which fuel may be passed to the firebox 5, the passageway embodying an extension of the firebox, as clearly shown by Figure 2 of the drawing.

This extension includes a wall 8 that has its lower end extended below the wall 9 or top of the firebox providing a heat chamber '10 above the grate 6 so that heat will be trapped in the heat chamber 10 and delivered to the pipes 11, to be hereinafter more fully described.

As shown by Figure 2, the front wall 12 of the extension is formed with an elongated oifset portion 13 defining an air passageway 14 which offset portion extends along the taken on line 1927. Serial no. 194,772.

bottom of the firebox 5 to deliver air directly under the grate 6, the passageway at the bottom being indicated by the reference character 15.

Guides 16 are secured within the extension, and provide supports for the sliding closure 17 that extends to a point adjacent to the grate 6 and provides means, whereby the lower end of the passageway 14 may be adjusted to vary the amount of draft.

The upper end of the passageway 7 is closed by the closure 18, which is formed with an opening adapted to register with the passageway 14, the opening being normally closed by means of the pivoted closure 19 to the end that the passage of air through the passageway 14c, and to the grate, will be regulated at the will of the operator.

Pipes 11 have one of their respective ends extended into the firebox 5, at opposite sides of the firebox, the opposite ends of the pipes extending into opposite sides of the heat box 20, the pipes 11 being curved as shown by Figure 1 of the drawing so that the water in which the pipes are positioned will be heated throughout the entire area of the tank, or trough in which the heater is positioned.

Extending upwardly from the heat box 20 is a pipe 21, which pipe is of a length to discharge smoke and gases at a point above the water level in the tank or trough.

The pipes 11 are connected by means of the rods 22 which have connection with the pipes 11 through the eyes that are secured to the pipes. Turnbuckles 23 connect the adjacent threaded ends of the rods 22 so that by operating the turnbuckles, the pipes 11 may be rigidly secured against movement.

In the use of the device it will be seen that a fire may be built in the firebox to cause the firebox and pipes 11 as well as heat box 20 to be heated, whereupon the device may be positioned within a tank.

Owing to the construction of the device, it will be obvious that the fire will continue to burn as long as fuel is supplied to the firebox, through the passageway 7, it being understood that the draft to the firebox will be regulated through the passageways 14: and 15 as previously described.

In this way, the water in the tank in which the heater is submerged will be heated, eliminating any possibility of the water freezing.

A submersible water heater including an inclined body portion terminating in a for- Wardly extended firebox, one Wall of the body ing open to the atmosphere, means for clos portion extending an appreciable distance ing the upper end of the body portion and I0 Within the firebox and below the upper wall offset portion, and a pipe for delivering prodoi' the firebox, one Wall ot the body portion nets of combustion from the firebox.

5 iaving A central elongated ofiset portion ter- In testimony that I claim the foregoing as niinating in a horizontal offset portion directmy own, I have hereto affixed my signature. ly under the firebox, a grate Within the lirebox, said body portion and'ofisct portion be- OLOF PEARSON. 

